Method of cooling the internal surface of a bottle, jar, or other hollow glass article



May 17, 1949 '1'. D; GREEN 2,470,245 FACE OF BOTTLES,

METHOD OF COOLING THE INTERNAL SUR JARS OR OTHER HOLLOW GLASS ARTICLES Filed June 5, 1942 Inventnr T 11151113512 Era-1 911.

l mm W flli Z 017215 ys Patented May 17, 1949 METHOD OF COOLING THE FACE OF A BOTTLE, JAR, LOW GLASS ARTICLE West Hartford, Conn., assignor Thomas D. Green,

to Hartford-Empire Company,

INTERNAL SUR- OR OTHER HOL- Hartford, Conn.,

a corporation of Delaware Application June 5, 1942, Serial No. 445,911

3 Claims.

This invention relates to improvements in methods of discharging jets of cooling fluid within the interior of hollow glass articles, such as bottles, jars, etc. to cool or chill the inner surfaces of such articles, as in tempering.

An object of the invention is to provide a practical method of cooling the internal surface of a bottle, jar or other article of hollow glassware by applying thereto distributed jets of cooling fluid, some of which have more moisture included therein and higher cooling characteristics than the others.

The method of the present invention may be performed by use of a nozzle to apply jets of liquid spray carrying air or other gas under pressure to the internal surface of a bottle, jar or other hollow glass article to chill such surface suitably for tempering of the article. The cooling effect or characteristics of the jets of fluid passing from the interior of the hollow body of the nozzle through the jet holes will vary within limits with the amounts of a liquid, such as water, carried in spray form by the air of the jets. I therefore propose, according to the invention, to provide a nozzle which will have means at the interior of the nozzle body for robbing the jet or jets which are intended to have a relatively lower cooling effect than the others of part of the liquid which otherwise would be included in such jet or jets. A nozzle constructed to accomplish this objective may have an inwardly projecting flashing strip, shield or baflie member on the inner wall of the nozzle body at the upstream side of the jet hole or holes through which will pass the jet or jets which are to have a relatively reduced cooling effect.

Some of the liquid component of the gaseous fluid-liquid spray coolant supplied to the nozzle may form a downwardly moving film on the inner wall of the nozzle body. An object of the present invention is to effect re-atomiZation within the nozzle body of the downwardly flowing film of liquid on the inner wall of such body. The inwardly projecting flashing strip, shield or baffle on the inner wall of the nozzle body may be used to attain this object, the downwardly flowing film of liquid on the inner wall of the nozzle body being required to flow over the inner edge of such flashing strip, shield or baffle where such liquid may be torn loose from its flow surface and broken up or re-atomized by the downwardly moving air or gaseous fluid at the interior of the hollow body. The flashing strip, shield or baffle thus may have a dual function. It may extend completely around the inner periphery of the shown in the drawing.

nozzle body and may have a relatively sharp inner edge to promote re-atomization of the liquid film flowing thereto or intercepted thereby. A plurality of these re-atomizing members on the inner wall of the nozzle body may be provided and respectively located at predetermined places along the length of such body. The extent of inward projection from the inner wall of the nozzle body of such re-atomizing member or members may be predetermined in relation to distance therefrom of the nearest jet hole or jet holes down-stream therefrom so that the jet-hole shielding effect of each such re-atomizing member may be varied from a practically negligible or zero effect to asubstantial effect as desired and as service conditions may require in any particular operating installation. A plurality of the re-atomizing edges projecting into the downwardly moving stream or streams of coolant in the nozzle body at different levels therein may be provided in any other suitable way.

Other objects and advantages of the invention will hereinafter be pointed out or will become apparent from .the following description of a practical embodiment of the invention as shown in the accompanying drawing, in which:

The view is a longitudinal vertical section of a portion of a nozzle in position for use to cool the interior of a bottle inaccordance with the invention.

The nozzle shown in the drawing has an elongate hollow body In adapted to project into the interior of a hollow glass article H, the internal surface of which is to be cooled, as through a tempering temperature range in a tempering operation or for any other useful purpose. The nozzle body may be closed at the end thereof that is within the glass article, this being the lower end of such body when it isin the position The opposite, in this case the upper, end portion of the nozzle is not shown since it may have any suitable known form and construction which will enable it to be suitably supported and operated in any known way and by known means and its bore or internal passage l2 supplied with a cooling fluid, indicated by the stippling I3. This cooling fluid may comprise compressed air or other suitable gas under pressure carrying atomized fine particles or spray of a suitable liquid, for example, water.

The nozzle body is provided with jet holes suitable in number, size or sizes, individual locations in the wall of the hollow nozzle body, etc., to provide for discharge of jets of the cooling fluid from the interior of the nozzle body toward the internal surface of the glass article at the places and in the amounts deemed appropriate for the tempering or other glass cooling operation. In the nozzle shown, the jet holes are arranged in two longitudinally extending series at opposite sides otlthe mazzlel body. Amozzle: having jet holes thusalocatiedtpfeferably,should: be rotated about its longitudinal axis in relation to the glass article to be tempered or a relative rotation between the glass article andthe nozzleaboutthe lon itudinal axis of the latterishould-beieffected in any suitable known manner. In the'absence of such relative rotation, the nozzle body probably would be provided with moretjetr hol-esand such holes would be more widely distributedcircumferentially of the nozzle body. The jet holes may be of any suitable contour oricontours;:1='or:the use of a cooling fluid of the liquid spray type, jet holes as disclosed in my co-pending application, Serial No. 445,910, filed June 5, 1942, now aban- :rdoned maybe; employed.

1 $5201: .theanurposezofispointinglout: novel; features aof t'hepnesentzinvention isiillustrated-imthe. drawing, 3thefiet15ho1e5fifofi theimzzletbodyrl I {Iv-may be odivided intoitwomfunotlonally.szdifierent; groups. 1 The: jet rholesrizof. ithaefirst'sgroupedesignated -l 4, -arethoserion'dischargingejets .oftcoolingi fluid of :relativelyr-reducm moisture; content-and cooling '.-characteristics:ziil heeseconwgroup comprises the wremaini-n jet holesrwhi'ch are designated I 5. The

1: individual ssjet;,-hcleseofiveach ,:'-g-ro.up: :and: the re- -,;spective-jet:ho1es :lof :theitworgroupszmayb ralike l..or;--,difierent inzsize; .shapeiomotherlphysical charctacteristica ,fPhfiajetz helessl-d a'ree ior discharge" of rsomepf-the'amoisturezcontentsof the; cooling fluid asusupplied ,tto .therjetl-eholes 1d 5;.- :x-fIhe jet holes .14.: in the mxamnlershowmare alla-loeatedat the isame-s'level'. Itethus; is: feasible to ishield 'all' of rthemqaarti-allywby providingram internal :flange, flashing strip aorerannulamfin" :1 Men the, "inner ;Wa11:- :of c themnzzlenbodyuat the: upstream :side of the -,j.et holes l 4;:,;;-;!1hisrmay be -sec11red'inplace ieithenepermanentlyiortremovablyrinranyasuitable known-way. theiexample: shown, the member It; will constrictaomreduce 'locallwthewcross-secvtiomotthe vdewnwardlytmovirig stream :of cooling fluid-- in theaboreamlithemozzleigandi will sprovide beneath itself.-iantaannulartzone l1. extending to and preferably somewhat below the jetvholes 14. ,l lluidrpassingathr ugh thisazonew to :the- -jet holes 4 l-WilL-TOOnSiSt mostlyvof rrthecair oraot-her, :gaseous ,component [loftltha'lcdolingfrfluid. -'Ilhe member .16 will shut roiftdireetrpassage- :ofmoisture to the rjetthelesr; either byrrlownwardlflow :Off liquid on .the'inner wall ofithe nozzle :bQdYxOI in thedown- *iwardly movingzcurrents-iof. the cooling-1 fluidr'next ltoisuchewalilfi 'l heztmember-tlfirmay:have a relatively shart inneriedgegiprojficting into. theustream .ofz'icoolingifiuid, asvlndioatedaat [8,; to -promote ;re-.atomizationiofwliquidrinteroepted byi the member-J6 anm flQwing-ithereontoefrom the-portion of ,thetiinnera;rwal1'-;of the iHOZZlGebOdY; immediately thereabove.

A. ,In lthe -operatiorraot the... structure shown, the :jetsiemerg ingifromi the holes. I 4 willhave reduced .coolingcharaeteristics. asscomparedi withthe jets item the. holes 15....1Theljet ho1es J4, eachpro- .vided llwithwa::moisturemobbingeshieldtorpartial baffle at .the upstream isid thereofirmaybe locatedl.toiprovidelajetssoiilowerrcooling effect or characteristics.iwherever .such 1 jets are desired article.

i. It .wil1..be..understood that individual shields may be providdkfor each of the jet holes I4, whether such holes are located at th same level or at difierent levels in the wall of the nozzle -body and'thateach-such shield may extend only --part ofthe distance around the inner periphery of the "nozzle body. It also will be understood -:-that-inwardly-projecting members of annular or other suitable configuration and provided with *liquid 're-atomizing edges may be provided on the inner wall of the nozzle body wherever they are deemed cto: :be: advantageouse or necessary eithercfor. theirrreeatomizingiaction 'ioraforitheir -jet-hole.ishieldingzraction or. 01? ibothlithese' ac tions or functionaltiManyamodifications:J'oi the icomprisea'redllcing thealiquidgspray icontent of rpartofa stream of particular illustrative: example of I thecinvention shown in the :drawing .anda hereinbefore described will readily occur z-to those.?skillect in" therart.

I claim:

1.. The" method of'i'cooling: thezinternal" surface of albottle,.:jar;,orvothernz hollovn@glass: article, as in tempering, :which' comprisesxa-pplying,,-distributed cooling jets thereto such that theufluid 'oi the jets: :applied torpne rportiom ofzsaidi internal surf ace: has; less a moistu-rez'c contenti and: cooling effect than thea' luid of the'sjets :appliedrto, at differentportiorr:of:said1surfaee.

2. Thenmethod oficooling theinter-rial surface of a bottle; jar,:or=:other 'horllow*glassaarticlewhich comprises introducing zjetsraof= :a: gaseous .t fluidliquid 'spraynmixturefuinto" apart of the hollow glass-article and aejetfof agenerally similar mixture of less iliquid'sprayrcontent'into :another part of said article.

3. The" method zofzcooling the-internal surface of a bottle; jar sop-other. hollow glass article, which gaseousa fluid-liquid spray in a hollow-:nozzle body projecting-into the article to be oooledrandx passing the iresultantproduct through jet holes in :the'; Wall of: said nozzle body against i the: internalrsuriacexof: a portion lofrthe article and massing-another. partrofv the stream ofgreater. liquid rspray content through other jet holes in said nozzleabody :jaga-inst .zth s internal surface 3 of another? portion of said: "article.

' fiiFI'I-IGMAS GREEN.

REFERENCES. ,CITED The following references are'-'of record in the file of! this *patent: '1 UNITED; STATES PATENTS Number rName Date 3 846,211 Johnson .4. Mar. 5, 1907 -:1,026,815 a: Matteson May 21', 1912 1,441,982 x-He'ylmans'etal. Jan. 9,1923 2,180,737 'I-Iess i: Nov. 21,1939 2,269,060 'Mitford -J-an. 6, 1942 2,275,155 MQngan; Jr. Mar. 3,1942 2,302,078 --.Wadman Nov 17,219.42 2,321,555 Mongan Jr June 8,11943 2,347,116 Littleton et 58,1. Apr. 18,1944 

